Added support for chirp™ detection. This software update will allow Colorado units to detect previously-programmed chirp™ units. See http://www.garmin.com/chirp for details on which units are chirp™ compatible. NOTE: Due to the hardware present in Colorado devices, chirp™ detection range may be less than that of other compatible devices.

Updated magnetic Earth field data.

Fixed issue with certain JPEGs not drawing from Custom Maps.

Fixed issue with Oblique Mercator User Grid distances.

Fixed line color when navigating a track off-road.

Forerunner 310XT Software Version 3.10

Changes made from version 3.00 to 3.10:

Fixed an issue with the Recovery Heart Rate message that was causing a shut down in various languages. The Recovery Heart Rate message is displayed 2 minutes after stopping an activity.